Finding the Fourth Proportional to 197,643.11, 272,745.54 and 106,996.68
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Solution
The fourth proportional to 197,643.11, 272,745.54 and 106,996.68 is: 147,654.37
Step by Step Solution
- Step 1: Write the proportion equation
197,643.11 : 272,745.54 = 106,996.68 : x - Step 2: Convert to fraction form
197,643.11/272,745.54 = 106,996.68/x - Step 3: Cross multiply
197,643.11x = 272,745.54 × 106,996.68 - Step 4: Simplify right side
197,643.11x = 29,182,867,264.81 - Step 5: Solve for x
x = 29,182,867,264.81/197,643.11 - Step 6: Final answer
x = 147,654.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.